/******************************************************************************
	This file is a part of the Snapshot Bioinformatics Project

	Copyright (C) 2012-2013 Jarom Schow

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#ifndef B_PROGRESS_HANDLER_H
#define B_PROGRESS_HANDLER_H

#include "BioDefs.h"

class QString;

namespace Bio {

class Progress;

class BIO_EXPORT ProgressItem {
public:
	ProgressItem();
	virtual ~ProgressItem();

	virtual bool	isCanceled() const = 0;

	virtual void	step( int steps = 1 ) = 0;
	virtual void	update( int curSteps ) = 0;
	virtual void	finish() = 0;
	virtual void	cancel() = 0;
	virtual void	status( const QString &msg ) = 0;
};

class BIO_EXPORT ProgressHandler {
public:
	
	ProgressHandler();
	virtual ~ProgressHandler();

	virtual ProgressItem*	startProgress( const QString &msg, int totalSteps, bool canCancel ) = 0;
};

}; // Bio

#endif // B_PROGRESS_HANDLER_H